HEATKEYS

Readcube is a free, simple, academic software and reference manager for researchers. Read Cube helps researchers organize, annotate and stay on top of new research literature.

Siemens AG is a global powerhouse in electronics and electrical engineering, operating in the industry, energy and healthcare sectors.

WorldWideScience.org is a global science gateway

YouTube is a place to discover, watch, upload and share videos.

Online shopping from the earth's biggest selection of books, magazines, music, DVDs, videos, electronics, computers, software, apparel & accessories, shoes, jewelry, tools & hardware, housewares, furniture, sporting goods, beauty & person...

Docstoc is a community for people to find and share professional documents. Find free legal documents and free business documents.

Flickr is almost certainly the best online photo management and sharing application in the world. Show off your favorite photos and videos to the world, securely and privately show content to your friends and family, or blog the photos and videos you...

Scribd is a social publishing site, where tens of millions of people share original writings and documents. Scribd

The USA Angel Investment Network connects entrepreneurs with Angel Investors. Find an Investor for your business, or access a network of investment opportunities.